Templot Club Archive 2007-2020
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posted: 27 Dec 2008 00:45 from: Scott Willis click the date to link to this post click member name to view archived images |
Merry Christmas all, I have posted a copy of my latest layout design which I hope you will all have a look at. I don’t have a great deal of knowledge of how the real permanent way was designed or constructed so I would be grateful if you could pass comment. The space available for the layout is in the spare room, measuring 10’x9’. To enable me to have as long a running length as possible I have designed the layout to be ‘U’ shaped. Starting from the bay platform situated along one wall, the track turns through 180 degrees, runs along the other wall and into the fiddle yard which will be situated outside the room in the hallway. The fiddle yard will only be erected for running sessions. The inner two lines are the up and down lines running between the station and the fiddle yard. A double span bridge will hide the entry into the fiddle yard. The two outer lines are the goods arrival/departure and a run-round loop. Two lines branch off the outer lines and return back to the fiddle yard. The outer most line returns to an imaginary West dock whilst the third outer line returns to an imaginary loco shed. There is still much to do before the design is complete but I thought I’d get members views before progressing. Regards Scott |
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posted: 28 Dec 2008 17:09 from: Jim Guthrie
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Scott Willis wrote: Merry Christmas all,Scott, Having messed about recently with a circular layout, I'm aware of the problems of doing crossovers between concentric tracks - i.e. the radius of the diverging road on the outer track can get quite tight and possibly too tight. Noting that your layout is in S scale (intelligent gentleman  ) i see that some of your crossover radii are getting a bit tight for S - getting down to about 42" in one case. I'm not saying this is unworkable, since a few S scale modellers have worked down to these radii with some success, but it does mean that you have to be careful with the selection of locos and rolling stock which will work through them successfully.Otherwise, it looks a good plan. I was wondering if you might not want some carriage stock storage, and you might be able to squeeze a siding between the arrival and departure roads. This might mess up the design of your station area since it would place the platform faces on the outer sides of the track, whereas your present version could use an island platform configuration which tends to take up less width. Jim. |
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posted: 28 Dec 2008 22:14 from: Scott Willis click the date to link to this post click member name to view archived images |
Hi Jim Thanks for taking the time to have a look at the design. The radii of the crossovers are a bit on the tight side, with the room being only nine feet wide I couldn’t get them any larger. You will see that I have used quite long turnouts to try and alleviate the problem. By introducing suitable gauge widening, and imposing a speed limit through the crossovers, I was hoping it would be alright. My choice of prototype is the North British Railway circa 1913 so most of the locomotives will be 0-6-0’s, 4-4-0’s or 0-4-2’s with fairly small wheelbases. Unfortunately there will be no room to add a carriage siding. The station is designed as a bay platform which, as you say, will take up less room. This allows the rails to be pushed out to the extremities and for as large a radius around the room as possible. The next stage is to shove a few timbers too create interlaced sleeper turnouts, I’ll keep you posted Regards Scott |
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posted: 29 Dec 2008 02:06 from: Jim Guthrie
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Scott Willis wrote: The radii of the crossovers are a bit on the tight side, with the room being only nine feet wide I couldn’t get them any larger. You will see that I have used quite long turnouts to try and alleviate the problem. By introducing suitable gauge widening, and imposing a speed limit through the crossovers, I was hoping it would be alright. My choice of prototype is the North British Railway circa 1913 so most of the locomotives will be 0-6-0’s, 4-4-0’s or 0-4-2’s with fairly small wheelbases.Scott, I did notice that you've got no reverse curves so you should avoid buffer locking, although you might have to do a bit of experimentation if you intend to use auto couplers. I think Jas Millham gets down to about 42" radius on Yaxbury in places and he doesn't seem to get any problems on that layout. Jim. |
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posted: 29 Dec 2008 19:36 from: Scott Willis click the date to link to this post click member name to view archived images |
Jim I wasn’t intending on using any form of auto coupling, just good old three link. The layout design isn’t very wide so I won’t have to reach too far. If I were to use any it would be Alex Jackson’s as they are less visible than most. Unfortunately, in my experience with 4mm, I found that AJ’s don’t like coupling up on sharp curves. At the moment I’m shoving timbers to make interlaced sleepers. I have a couple drawings of an NB turnout, diamond and single slip to help me. I’m having a few problems with the double slip as I have no drawings for one and it’s not just a case of producing a mirror image of a single slip. At the moment about 50% of it is guess work. Regards Scott |
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posted: 30 Dec 2008 01:04 from: Jim Guthrie
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Scott Willis wrote: At the moment I’m shoving timbers to make interlaced sleepers. I have a couple drawings of an NB turnout, diamond and single slip to help me. I’m having a few problems with the double slip as I have no drawings for one and it’s not just a case of producing a mirror image of a single slip. At the moment about 50% of it is guess work.Did they interlace sleepers on a double slip? I've read a bit about Caley trackwork and I was under the impression that they used interlaced timbers on simpler P&C work, but used non interlaced timbering on more complex formations. Jim. |
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posted: 30 Dec 2008 01:33 from: Scott Willis click the date to link to this post click member name to view archived images |
Jim Guthrie wrote: Did they interlace sleepers on a double slip? I've read a bit about Caley trackwork and I was under the impression that they used interlaced timbers on simpler P&C work, but used non interlaced timbering on more complex formations. I’m not sure? I certainly have a drawing of a single slip which is interlaced as far as the heel of the switches, then non-interlaced between the switches. Regards Scott |
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posted: 31 Dec 2008 15:41 from: Jim Guthrie
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Scott Willis wrote: Scott, Is there any possibility that I could get a copy of your drawings of the slip and the diamond? I'm contemplating a small Caledonian layout at the moment and there will probably be a slip in it and I reckon that the NB details will be similar to what the Caledonian would have done. Jim. |
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posted: 31 Dec 2008 15:52 from: Scott Willis click the date to link to this post click member name to view archived images |
Jim I can certainly give you a copy. The drawing I have is a little bigger than A4 so won't fit in the scanner. I'll get it photocopied in town and post it down to you in the New Year. Regards Scott |
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posted: 31 Dec 2008 16:43 from: Jim Guthrie
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Scott Willis wrote: JimScott, That would be excellent. Many thanks. Jim. |
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posted: 14 Jan 2009 09:31 from: Jim Guthrie
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Jim Guthrie wrote: Scott Willis wrote:Scott,JimScott, I've just heard from my wife that your copies have arrived in the post. Many thanks for them. Let me know about costs and I'll reimburse you. Jim. |
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posted: 14 Jan 2009 14:21 from: Scott Willis click the date to link to this post click member name to view archived images |
Jim Guthrie wrote: Scott, Jim It's a pleasure, I hope they are of some use to you. Don't worry about reimbursement, the cost won't break the bank even in the current economic climate. I'll look forward to seeing the design for your proposed Caley layout. There's an etched brass Caley 'Jumbo' from Worsley Works sat in my cupboard, this just might give me the incentive to build it. Regards Scott |
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posted: 14 Jan 2009 14:22 from: Scott Willis click the date to link to this post click member name to view archived images |
Jim Guthrie wrote: Scott, Jim It's a pleasure, I hope they are of some use to you. Don't worry about reimbursement, the cost won't break the bank even in the current economic climate. I'll look forward to seeing the design for your proposed Caley layout. There's an etched brass Caley 'Jumbo' from Worsley Works sat in my cupboard, this just might give me the incentive to build it. Regards Scott |
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